Answers

2016-04-11T02:26:48+05:30
A formula for wave length is like formula for route s calculated by velocity v and time t:      s = v * t

λ = v * T, where T is a period of wave's cycle.
A formula for frequency f:
f = 1 / T  [1/s = Hz]   ⇒   T = 1 / f
λ = v / f
λ = 340 / 512 [m*s⁻¹*Hz⁻¹ = m*s⁻¹ * s = m] ≈ 0,664 m = 664 mm

Answer: The wave length is 664 mm.

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2016-04-11T07:12:31+05:30
Wavelength = velocity/frequency Wavelength = 340/512 Wavelength = 85/103
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